Automatic side feed shuttle



Aug. 30, 1932. 1, SNOW 1,874,648

AUTOMATIC SIDE FEED SHUTTLE Filed May 8, 1930 2 Sheets-Sheet l h T/ 25/ ,5 9 34 mi: S,

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73 ,20/ B5 Z 2 y INVENTOR.

Aug. 30, 1932. 1, SNOW 1,874,648

AUTOMATIC SIDE FEED SHUTTLE I Filed May 8, 1950 2 Sheets-Sheet 2 9 ,4 Kw/#9 2 45 59 V "i 36m A I T6 nv A59 32 7f 72 I75 .if ;L

INVENTOR I f W 26 [f BY W ATTORNFY Patented Aug. 30, 1932 siren STATES.

PATENT.

. ISAAC SNOW, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR TO U. S. BOBBIN & SHUTTLE COMPANY 1929, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND AUTOMATIC SIDE FEED SHUTTLE Application filed May 8, 1930. Serial No. 450,649.

This invention relates to shuttles particularly of the automatic or self-threading type although it can beused. as a hand threader if desired.

in its preferred form, it is particularly useful in what is known as the automatic 7 double shuttle plush loom.

In such'looms, there are two shuttle races one above the other and a battery or magaio zine for bobbins is positioned in front of the place where the shuttles rest at one end of the lay beam instead of being positioned above such a stationary shuttle as is more common. The end of the thread in the overhead battery is fastened at a point nearly in line with the bobbin which is being fed to the shuttle, but in this type of loom, the

thread is fastened directly to another bobbin v I in the magazine. The full bobbin from such a battery is forced through the shuttle horizontally instead of vertically and to accommodate this, both shuttles must have a bobbin chamber which extends through horizontally from the feed side to the discharge side. I

When a full bobbin is fed to the shuttle and the lay beam recedes, the pull is at right angles and enough slack thread must be left loose to reach the selvage of the cloth or an '30 intermediate thread guide and until the right angle pull becomes one of less than thirty degrees. The shuttle cannot thread until the angle is still less.

Moreover in this type of loom, it has been found desirable to have the thread from the bobbin run out from the top of the shuttle. In actual operation, this thread after coming from the eye extends out and along the front and there is no groove such as is customary along the entire side of the ordinary shuttle.

will be called the feed side and the opposite side will be called the discharge side.

The other side through which extends the eye and from which the thread runs out will be called the eye side and the opposite side will be called the closed side.

In the drawings Fig. 1 is a diagrammatic elevation partly in section showing the relation between the double shuttle lay beam to the double woven cloth.

Fig. 2 is a diagrammatic plan view showing the relation to a shuttle of a bare bobbin which has just beenejected, to the new full bobbin and to the bobbin in the magazine.

Fig. 3 is a diagrammatic plan view similar 6& to Fig. 2 but showing the cloth, the double warp, part of the lay beam, part of the breast beam and the way in which the thread is tied together and extends from the shuttle to the magazine.

Fig. 4 is a plan view of one end of a shuttle of the type used in the double shuttle automatic plush loom.

Fig. 5 is an elevation of the shuttle shown in Fig. 4 from the feed side which would be from the bottom of Fig. 4.

Fig. 6 is a plan view of the shuttle block removed from the shuttle.

Fig. 7 isan elevation from the front or as from the right of Fig. 6 part of the wood of the shuttle in the shuttle eye being shown the better to show the relation of the parts.

Fig. 8 is a view of the shuttle block from the discharge side or as from the top of Fig. 6.

Fig. 9 is a view looking from the right in the direction of the arrow on line 99 of Fig. 5.

Fig. 10 is an elevation as from the back of Fig. 7.

Fig. 11 is a view similar to Fig. 10 of a modified construction in which the teeth rake or come down from the top instead of up from the bottom.

Fig. 12 is a plan view of a modified construction adapted to be used in an automatic loom of the common type wherein the new bobbin is pushed down from the top.

Fig. 13 is an elevation of the shuttle block such as shown in Fig. 12 as viewed from the front or from the bottom of Fig. 12, the 100 block being removed from the shuttle but some of the wood being shown for convenience in understanding the relation of the arts.

Fi g. 14 is an elevation of the shuttle block shown in Figs. 12 and 13 removed from the shuttle, as from the front or the right of Fig. 13.

Fig. 15 is an elevation of the shuttle block shownin Figs.*12, 13 and 14 as viewed from the back or from the left of Fig. 13.

In the drawings, 200 indicates the breast beam and 201 the lay beam of a loom of the automatic plush type in which there are two not shown, a full bobbin is pushed into the bobbin chamber such as 20 in a shuttle, as shown at B6 in Fig. 2, thus forcing out an empty bobbin such as B1.

201 indicates the lay beam which carriesshuttle races for the two shuttles such as S2 and S1. 7

P represents the body of the cloth having a selvage edge 9 which is formed from a warp W made up of various series of threads 1, 2,

. 3 and 4 which, as shown in Fig. 1,.come together at the edges 9 and 8 as the cloth is formed.

This cloth P has a top woven section5 and a bottom woven section 6 and between them extend the pile threads 7 holding the two together until they are cut apart by a horizontal knife in a well known manner.

The top shuttle S1 passes between the series of warp threads 1 and 2 and the shuttle S2 between the series of warp threads 3 and 4.

The individual threads in these various sections are shifted by means of harnesses in a manner which it is not necessary to de-, scribe and the thread T1 and T2 in the shuttles S1 and S2 are thereby held in place along the continuously forming cloth edges 9 and 8. i I v The lay beam 201 moves towards and away from the'breast beam 200 in a well known manner and it is customary in such looms to tie the end of thread T5 as from a bobbin;

B5 to the end of the thread T6 as from a bobbin B6, as shown at 102 in Fig. 3, while both are in the magazine M leaving suflicient slack so that the shuttle indicated by S in Fig. 3 afterit leaves the magazine and is in the shuttle can move to the dotted position within the warp W without snapping the thread. I

' of the ordinary shuttle.

It is clear that if there was no slack, the thread T6 would not unwind from the bobbin, but would break.

bobbin chamber extends from front to back instead of from top to bottom, certain arrangenients are therefore different from that The. wooden body of a shuttle such as S, S1 or S2 is'indicated by 10.

20 is the bobbin chamber and 21v the metal tip of the shuttle while 22, shown as the top, I will call theeye side and I will call 25 the closed side, while 24 I will call the feed side and 23 the discharge side because each full bobbin enters the side 24 and comesout the side 23. V a

132 is a threading. grooveand 26 is the usual screw which. holds a threading block such as A in place in the threading. block recess 27 in the feedside.

This threading block recess has afront edge 28 and between 28 and the front face 35 of block A is a threading slot which extends out to an eye 29' in the wood. Block A has a longitudinal thread passage 13 in extension of the bobbin chamber 20 and a guide wall which extends from the eye side 22'into thread passage 13 at 33 and thence extends forward as a nose 36. This nose 36 extends over and back and at the outside merges with the front face 35 and outside of block A. r y

Preferably, the edge on the eye side of the nose 36 at 137 extends toward the-feed side and then in a substantially straight direction this edge merges with the front edge 37 of block A which goes toward the discharge side forming a front tooth 39 proximate the eye29 in the wood, as shown in Fig. 7.

Behind-this tooth 39, there is therefore. formed an eye in the metal 49 at the back of which is preferably a hardened steel thread pin 149 driven into a. socket 249 in block A to take the wear.

I Preferably also forming a part of tooth 39, a" hardened steel pin 139 is driven up in the back part of tooth 39 parallel with pin 149, to take the wear of the thread. The

part 48 of eye 49 between pins 139 and 149' is rounded to avoid cutting the thread.

From nose 36 the face 35"of block A between edges ]33 and 37 gradually rounds out more and more at 34 until it reaches and 7 up and get into eye 49 on the second pick,

but when once in, it is it to get out. p

- I prefer also to use a longitudinal guard 31 which fits into the side 131 of block recess 27 on the closed side and extends at the bottom from the back of block A forward at 32 outside the nose 36. The interior of forward end 32 of guard 31 as shown in Fig. 6 slopes or curves in around nose 36 as a almost impossible for guide 732 to guide the thread to the inside of nose 36 on the first pick. On the second pick, the pull is from the back and, as just described, the thread enters eye 49.

' Block A also has at the back extending out from the closed side, aset of transverse hook tooth 330 and the whirling of the unwinding thread, the thread gets behind nose 36 on the first pick.

Regardless of which way the thread is wound on the bobbin, the teeth, as shown in i Fig. 10, will catch it but as shown in Fig. 11

for a reverse wound bobbin, I may prefer to use teeth or a tooth extending from the opposite side.

331 is a thread pin which extends between the block and the shuttle body in a direction from the feed side towards the discharge side.

Around this thread pin, the thread such as T6 makes a right angle turn so as to comeout of the eye 49. I

7 represents a spring actuated friction device including a plate 73 pivoted at 72 and pressed by a spring 71 against the thread pin 331 the top of the plate being rounded and beveled at 75 so that the thread T6 must get 1 between it and the pin 331 as it runs out of Block A is also cut away at' the shuttle eye. 175 to guide the thread in behind bevel 75 and plate 73. on the second pick. Thereafter, the pull of the yarn keeps it in between pin T 331 and plate 73. Preferably eye 49 is located at about the same distance back from tip 21 as pin 331.

If the back teeth or hooks rake forward, as shown in Fig. 6, the thread may balloon forward and might unthread except for the forwardly located spring friction device 70, but this holds it against thread pin 331 and prevents it from slipping around over the nose 36 and unthreading.

I may also use my type of shuttle in the ordinary automatic loom in which the bobbins are pushed down from the top. I Show such a construction in Figs. 12, 13, 14 and 15.

In such case, with a so-called left eye, on the first-pick, when the pull of the thread comes from beyond the front end of'the shuttle and slightly above it, the thread T7 is pulled down into the threading chamber 50' between the guide sides 51 and 52 of block 53. On the second pick, after the thread has been caught in the opposite selvage of the cloth, the pull is down and fromthe back so that the thread quickly slips down along the edge 57 which extends from the nose 56 down under the tooth 59, thethread slipping into the eye 60 in the metal as in the other construction.

In this case, however, I show'a construction where the friction 61 instead of being at 1 the front is of felt and in position at the back' behind the hook shown as a pin 62. In this case, I prefer to cut in the overhanging part 58 where it projects over the nose 56 a forwardlyextending recess 64 which creates a backward raking hook 63 directly over the nose 56. This hook takes the place of the front friction in preventing unthreading as it is so made that in case of any ballooning,'the thread T7 slips up and along the inside edge 58 of guide 52 and the nose 56 into the recess 64 which prevents it from unthreading.

The thread T7, from the bobbin, bends around a pin 67 which corresponds with'331. Pin 66 forms the back side of tooth 59 and the front side of eye 60 in the metal.

As shown pin 66 projects slightly beyond the tip of tooth 59.. If desired, another hard ened steel pin like 149 may be driven into the metal or as shown at 161, such a pin may be driven into the wood. p

- The wood 15of the shuttle, at 69 of the'eye in the wood preferably overlaps the end of tooth 59. I 1

Obviously my shuttle can have a right or left or top or bottom eye and the bobbin can be wound from right to left or vice versa.

I claim: 1

1. The combination in a shuttle having a body in which is a bobbin chamber which extends through from the feed side to the discharge side, a threading groove and a threading block recess in the feed side, such recess extending out at the eye side as a slot to an eye in the wood; of a threading block positioned in said block recess having a longitudinal thread passage in extension of'the bobbin chamber and. having a guioe wall which extends from the eye side into said thread passage and forward, theedge of the guide wall extending forward along the thread passage to a nose, the forward side of said block extending over and back to the eye and the forward edge extending from the nose towards the feed side and then back in a substantially straight direction towards the discharge side where it terminates as a.

front tooth which is proximate and overlapped by the'eye in the wood, there being behind this tooth, an eye in the metal-which is" closed at the back by an eye thread. pin, alongitudinal guard which extends from the back of the block at the closed side of the shuttle forward over the nose, said block having at the back and at the closed side a set of transverse-teeth which slope towardsthe eye 10 side and the discharge side, the inner tooth being of hook form and raking forward; a thread in extending between the block and shuttle body from the feed side towards the discharge side; and a spring actuated friction device positioned in the forward part of the thread passage and which engages said thread pin. 7

2. The combination in a shuttle having a body in which is abobbin'chamber which extends through from the feed side to the discharge side, a threading groove and a threading block recess in the feed side, such recess extending out at the eye side I as a slot to an eye in the wood; of a threading block positioned in said block recess having a longitudinal thread passage in extension of the bobbin chamberand having a guide wall which extends from the eye H Y side into said thread passage and forward, 39 the edge of the guide wall extending forward along the thread passage to a nose, the forward side of said block extending over and back to the eye and the forward edge extending from the nose towards the feed side and then back in a substantially straight direction towards the discharge side where it terminates as a front tooth which is proximate the eye in the wood, there being behind this tooth, an eye in the metal which is closed '49 at the back by an eye thread pin, a longitudinal guard which extends from the back of the block at the closed side of the shuttle forward outside the nose, said block having M at the back and at the closed side a set of transverse teeth which slope towards the eye side and the discharge side, the inner tooth being of hook form; a thread pin extending between the block and shuttle body from the N feed side towards the discharge side; and a spring'actuated friction device positioned in the forward part of the thread passage and which engages said thread pin. I

3. The combination in a shuttle having a body in which is a bobbin chamber which extends through from the feed side to the discharge side, a threading groove and a threading block recess in the feed side, such recess extending out at the eye side as a slot to an eye in the wood; of a threading block 00 positioned in said block recess having a longitooth which is proximate the eye in the wood,

there being behind this tooth, an eye in the metal, a longitudinal guard which extends from the back of the block at the closed. side of the shuttle forward outside the nose, said block having at the back and at the closed side a tooth whichslopes towards the discharge side; a thread pin extending between the block and shuttle body from the feed side towards the discharge side; and a friction device positioned in the thread passage.

4-. The combination in, a shuttle having a bod in which is a bobbin chamber which exten s through from the feed side to the discharge side," and a threading block recess in the feed side, such recess extending out at the eye side as a slot to an eye in the wood; of a threading block positioned in said block recess having a longitudinalthread passage in extension of the bobbin chamber and having a guidewall which extends from the eye side into said thread passage and forward along the thread passage to a nose, the front side of 'saidlblock extending from the nose to-I wards the feed side and then back in a sub-' stantially straight direction towards the discharge side where it terminates as a front tooth which is proximate the eye in the wood, there being behind this tooth, an eye in the metal, a longitudinal guard which extends from the back of the block along the feed and closed side of the shuttle forward outside the nose; a thread pin extending between the block and shuttle body from the feed side towards the discharge side; and means to prevent the thread when unwinding from the shuttlefrombeing thrown beyond the front of the nose and unthreading.

5. The combination in a shuttle having a body in which is a bobbin chamber which extends through from the feed side to the discharge side, and a threading block recess in the feed side, such recess extending out at the eye side as a slot to an eye in the wood; of a threading block positioned in said block recess having a longitudinal thread passage in extension of the bobbin chamber and having a guide wall which extends from the eye side intosaid thread passage and forward along the thread passage to a nose, the front side of said block extending over and back to the eye and the front edge extending from the nose towards the feed side and then back in a substantially straight direction towards the discharge side where it terminates as a front tooth which is proximate the eye in the wood, there being behind this tooth,'an eye feed and closed side of the shuttle forward r, ga -way outside the nose; and a thread pin extending between the block and shuttle body from the feed side towards the discharge side.

6. The combination in a shuttle having a body in which is a bobbin chamber which extends through from the feed side to the discharge side, and a threading block recess in the feed side, such recess extending out at the eye side as a slot to an eye in the wood; of a threading block positioned in said block recess having a longitudinal thread passage in extension of the bobbin chamber and having a guide wall which extends from the eye side into said thread passage and forward along the thread passage to a nose, the front side of said block extending from the nose in a substantially straight direction towards the discharge side where it terminates as a front tooth which is proximate the eye in the wood, there being behind this tooth, an eye in the metal, a longitudinal guard which extends from the back of the block along the feed and closed side of the shuttle forward outside the nose; and a thread pin extending between the block and shuttle body from the feed side towards the discharge side.

ISAAC SNOlV. 

